/* ─── Base / Reset ─── */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; -webkit-font-smoothing: antialiased; }

/* ─── Color Tokens ─── */
:root {
  --midnight-900: #0a1628;
  --midnight-950: #060d1a;
  --midnight-700: #1a2d4a;
  --midnight-600: #243654;
  --midnight-300: #8fa3bf;
  --midnight-200: #b8c8df;
  --midnight-100: #dce6f2;
  --mint-600: #0d9488;
  --mint-500: #14b8a6;
  --mint-400: #34d399;
  --mint-350: #5eead4;
  --mint-200: #a7f3d0;
  --mint-100: #d1fae5;
  --mint-50:  #ecfdf5;
}

/* ─── Buttons ─── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  background: var(--mint-400);
  color: var(--midnight-900);
  font-weight: 600;
  padding: 0.75rem 1.75rem;
  border-radius: 0.75rem;
  text-decoration: none;
  transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
  box-shadow: 0 4px 14px rgba(52,211,153,0.3);
}
.btn-primary:hover {
  background: var(--mint-350);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(52,211,153,0.4);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  background: rgba(255,255,255,0.1);
  color: #fff;
  border: 1.5px solid rgba(255,255,255,0.25);
  font-weight: 600;
  padding: 0.75rem 1.75rem;
  border-radius: 0.75rem;
  text-decoration: none;
  transition: background 0.2s, border-color 0.2s, transform 0.15s;
}
.btn-secondary:hover {
  background: rgba(255,255,255,0.18);
  border-color: rgba(255,255,255,0.5);
  transform: translateY(-2px);
}

.btn-primary-dark {
  display: inline-flex;
  align-items: center;
  background: var(--midnight-900);
  color: #fff;
  font-weight: 600;
  padding: 0.75rem 1.75rem;
  border-radius: 0.75rem;
  text-decoration: none;
  transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
  box-shadow: 0 4px 14px rgba(10,22,40,0.3);
}
.btn-primary-dark:hover {
  background: var(--midnight-700);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(10,22,40,0.4);
}

/* ─── Badges ─── */
.badge-mint {
  background: rgba(52,211,153,0.15);
  color: var(--mint-600);
  padding: 0.4rem 1rem;
  border-radius: 9999px;
  border: 1px solid rgba(52,211,153,0.3);
}
.badge-mint-dark {
  background: rgba(52,211,153,0.15);
  color: var(--mint-350);
  padding: 0.4rem 1rem;
  border-radius: 9999px;
  border: 1px solid rgba(52,211,153,0.25);
}

/* ─── Inputs ─── */
.input-field {
  width: 100%;
  padding: 0.7rem 1rem;
  border: 1.5px solid var(--midnight-100);
  border-radius: 0.625rem;
  background: #fff;
  color: var(--midnight-900);
  font-family: inherit;
  font-size: 0.95rem;
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
}
.input-field:focus {
  border-color: var(--mint-400);
  box-shadow: 0 0 0 3px rgba(52,211,153,0.15);
}
.input-field::placeholder { color: #94a3b8; }

/* ─── Cards ─── */
.card {
  background: #fff;
  border-radius: 1.25rem;
  padding: 2rem;
  border: 1px solid var(--midnight-100);
  transition: transform 0.25s, box-shadow 0.25s;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(10,22,40,0.08);
}

/* ─── Service Cards ─── */
.service-card { position: relative; overflow: hidden; }
.service-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--mint-400), var(--mint-350));
  transform: scaleX(0);
  transition: transform 0.3s;
}
.service-card:hover::after { transform: scaleX(1); }

/* ─── Scroll Reveal ─── */
.reveal {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}
.reveal[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
}
.reveal.revealed[data-reveal] {
  opacity: 1;
  transform: translateY(0);
}

/* ─── Geometric Shapes ─── */
.geo-circle {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}
.geo-circle--1 {
  width: 420px; height: 420px;
  background: var(--mint-400);
  top: -120px; left: -140px;
  opacity: 0.07;
}
.geo-circle--2 {
  width: 300px; height: 300px;
  background: var(--mint-350);
  bottom: -80px; right: 10%;
  opacity: 0.08;
}
.geo-square {
  position: absolute;
  pointer-events: none;
}
.geo-square--1 {
  width: 180px; height: 180px;
  background: var(--mint-400);
  top: 18%; right: 5%;
  transform: rotate(45deg);
  opacity: 0.06;
  border-radius: 12px;
}
.geo-square--2 {
  width: 120px; height: 120px;
  background: #fff;
  bottom: 10%; left: 8%;
  transform: rotate(20deg);
  opacity: 0.15;
  border-radius: 8px;
}
.geo-triangle {
  position: absolute;
  pointer-events: none;
  width: 0; height: 0;
}
.geo-triangle--1 {
  border-left: 80px solid transparent;
  border-right: 80px solid transparent;
  border-bottom: 140px solid var(--mint-400);
  top: 25%; right: 12%;
  opacity: 0.06;
  transform: rotate(-15deg);
}
.geo-triangle--2 {
  border-left: 60px solid transparent;
  border-right: 60px solid transparent;
  border-bottom: 100px solid var(--midnight-700);
  top: 15%; right: 20%;
  opacity: 0.08;
  transform: rotate(25deg);
}
.geo-dots {
  position: absolute;
  width: 120px; height: 120px;
  background-image: radial-gradient(circle, var(--mint-400) 1.5px, transparent 1.5px);
  background-size: 16px 16px;
  opacity: 0.25;
  top: 30%; left: 3%;
  pointer-events: none;
}

/* ─── Header scroll state ─── */
#site-header.scrolled {
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--midnight-100);
}
#site-header.scrolled .nav-link { color: var(--midnight-700); }
#site-header.scrolled .nav-link:hover { color: var(--mint-600); }
#site-header.scrolled .font-heading { color: var(--midnight-900); }

/* ─── Mobile menu ─── */
#mobile-menu { animation: slideDown 0.25s ease; }
@keyframes slideDown {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ─── Responsive ─── */
@media (max-width: 640px) {
  .geo-circle--1 { width: 250px; height: 250px; }
  .geo-square--1 { width: 100px; height: 100px; }
  .geo-triangle--1 { border-left: 50px solid transparent; border-right: 50px solid transparent; border-bottom: 90px solid var(--mint-400); }
}